:root{color-scheme:light;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#f5f7fb;color:#0f172a;line-height:1.5}*{box-sizing:border-box}body{margin:0;background:linear-gradient(180deg,#f8fafc,#f1f5f9);color:#0f172a}button,input,select{font:inherit}button{transition:all .2s ease}button:hover{transform:translateY(-1px)}button:disabled{opacity:.6;cursor:not-allowed;transform:none}.admin-app{min-height:100vh;max-width:1400px;margin:0 auto;padding:24px}.app-header{background:linear-gradient(135deg,#0f172a,#1d4ed8);color:#fff;padding:28px 32px;border-radius:24px;box-shadow:0 20px 45px #0f172a1f;margin-bottom:20px}.app-header h1{margin:0;font-size:28px;font-weight:700;letter-spacing:-.02em}.app-header p{margin:8px 0 0;color:#dbeafe;font-size:1rem}.tab-bar{display:flex;gap:10px;padding:12px;background:#fffc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid #e2e8f0;border-radius:16px;margin-bottom:24px;box-shadow:0 8px 24px #0f172a0d}.tab{border:1px solid transparent;border-radius:999px;padding:10px 18px;background:transparent;cursor:pointer;color:#475569;font-weight:600}.tab:hover{background:#f8fafc}.tab.active{border-color:#bfdbfe;background:#eff6ff;color:#1d4ed8}.page-content{padding:4px 0 24px}.page-header{margin-bottom:20px}.page-header h2{margin:0;font-size:1.75rem;font-weight:700}.page-header p{margin:6px 0 0;color:#64748b}.card,.form-card{background:#fff;border:1px solid #e2e8f0;border-radius:20px;padding:24px;margin-bottom:24px;box-shadow:0 12px 30px #0f172a0d}.grid{display:grid;gap:24px}.layout-two-column{grid-template-columns:340px minmax(0,1fr)}.form-inline{display:grid;gap:12px}.form-card label,.card label{display:grid;gap:8px;margin-bottom:12px;color:#334155;font-weight:600}input,select{border:1px solid #cbd5e1;border-radius:12px;padding:12px 14px;width:100%;background:#f8fafc}input:focus,select:focus{outline:none;border-color:#60a5fa;box-shadow:0 0 0 3px #60a5fa33}button{border:none;border-radius:12px;padding:10px 16px;cursor:pointer;font-weight:600}button.primary{background:linear-gradient(135deg,#2563eb,#3b82f6);color:#fff;box-shadow:0 8px 18px #2563eb33}button.secondary{background:#f1f5f9;color:#334155}button.danger{background:linear-gradient(135deg,#dc2626,#ef4444);color:#fff;box-shadow:0 8px 18px #dc26262e}.error-box{background:#fef2f2;color:#b91c1c;padding:16px 18px;border-radius:14px;border:1px solid #fecaca;margin-bottom:16px}.data-table{width:100%;border-collapse:collapse}.data-table th,.data-table td{padding:12px 10px;border-bottom:1px solid #e2e8f0;text-align:left}.data-table th{color:#64748b;font-size:.85rem;text-transform:uppercase;letter-spacing:.04em}.playlist-list,.screen-list{display:grid;gap:10px;margin-top:16px}.playlist-button{width:100%;text-align:left;border:1px solid #e2e8f0;border-radius:14px;padding:12px 14px;background:#f8fafc;color:#334155;font-weight:600}.playlist-button.active{border-color:#93c5fd;background:linear-gradient(135deg,#eff6ff,#dbeafe);color:#1d4ed8;box-shadow:inset 0 0 0 1px #bfdbfe}.detail-row{display:grid;grid-template-columns:140px 1fr;gap:12px;padding:10px 0;color:#475569}.sortable-list{display:grid;gap:12px;margin-bottom:16px}.sortable-item{display:flex;align-items:center;gap:12px;border:1px solid #e2e8f0;border-radius:16px;padding:12px 14px;background:linear-gradient(135deg,#fff,#f8fafc);box-shadow:0 6px 18px #0f172a0a}.sortable-handle{cursor:grab;padding:8px;border-radius:10px;background:#e2e8f0;color:#475569}.item-details{flex:1}.item-meta{color:#64748b;font-size:.95rem}.screen-card{border:1px solid #e2e8f0;border-radius:18px;padding:18px;background:linear-gradient(135deg,#fff,#f8fafc);box-shadow:0 8px 24px #0f172a0a}.screen-header{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:14px}.screen-meta,.screen-details{color:#475569;font-size:.95rem;gap:8px;display:grid}.status-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.03em}.status-online{background:#dcfce7;color:#166534}.status-offline{background:#fee2e2;color:#b91c1c}.media-card{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px 16px;border:1px solid #e2e8f0;border-radius:14px;background:#fafcff;margin-bottom:12px}.media-card-info{display:flex;align-items:center;gap:12px;min-width:0}.media-thumb{width:56px;height:56px;border-radius:12px;background:linear-gradient(135deg,#dbeafe,#bfdbfe);display:flex;align-items:center;justify-content:center;color:#1d4ed8;font-weight:700;flex-shrink:0}.media-card strong{display:block}.media-meta{color:#64748b;font-size:.95rem;margin-top:4px}.media-actions{display:flex;gap:8px}@media (max-width: 900px){.admin-app{padding:16px}.layout-two-column{grid-template-columns:1fr}.app-header{padding:24px 20px}.tab-bar{flex-wrap:wrap}}